/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/ExtrudeMesh.h
bool ApplyExtrude ( [FExtrusionInfo](API\Plugins\DynamicMesh\Operations\FExtrudeMesh\FExtrusionInfo) & Region, [FMeshNormals](API\Runtime\GeometryCore\DynamicMesh\FMeshNormals) * UseNormals )